Search Wildlife
≡
Northwest bonneville pyrg
Pyrgulopsis variegata
NatureServe conservation status
Global (G-rank): G2
State (S-rank): S1
External links
Species range
In Utah this species is known from 8 springs in far western Box Elder county and from 1 spring in extreme northwestern Tooele County (Hershler 1998).
Habitat
All but one of the known Utah populations of this species occur in rheocrenes, springs that emerge from the ground as flowing streams; the one Utah exception is in a heliocrene (Hershler n.d.). For these inhabited springs Hershler (n.d.) reported temperatures that ranged from 13 to 19 C, and their conductivities were from 478 to 6,100 micromhos/cm. Elevations at these springs are 4,235 to 6,640 ft.
Threats or limiting factors
Fish introductions, habitat modification or degradation from water diversion and livestock watering or other alterations of the springs in which these snails are found could extirpate any of the known populations.
